Home / 3,172.57-4,377.04-1,994.29

Finding the Fourth Proportional to 3,172.57, 4,377.04 and 1,994.29

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Solution

The fourth proportional to 3,172.57, 4,377.04 and 1,994.29 is: 2,751.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.57 : 4,377.04 = 1,994.29 : x
  2. Step 2: Convert to fraction form
    3,172.57/4,377.04 = 1,994.29/x
  3. Step 3: Cross multiply
    3,172.57x = 4,377.04 × 1,994.29
  4. Step 4: Simplify right side
    3,172.57x = 8,729,087.10
  5. Step 5: Solve for x
    x = 8,729,087.10/3,172.57
  6. Step 6: Final answer
    x = 2,751.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.